http://www.ilga.gov/legislation/ilcs/ilcs4.asp(625 ILCS 5/3‑114)
(1) Subject to subsection (f‑30), if, at the time of
repossession by a lienholder that is seeking to transfer title pursuant to subsection (f‑5), the owner has paid an amount equal to 30% or more of the deferred payment price or total of payments due, the owner may, within 21 days of the date of repossession, reinstate the contract or loan agreement and recover the vehicle from the lienholder by tendering in a lump sum (i) the total of all unpaid amounts, including any unpaid delinquency or deferral charges due at the date of reinstatement, without acceleration; and (ii) performance necessary to cure any default other than nonpayment of the amounts due; and (iii) all reasonable costs and fees incurred by the lienholder in retaking, holding, and preparing the vehicle for disposition and in arranging for the sale of the vehicle. Reasonable costs and fees incurred by the lienholder include without limitation repossession and storage expenses and, if authorized by the contract or loan agreement, reasonable attorneys' fees and collection agency charges.